Screening of different genotypes/cultivars of black gram against stem fly, Melanagromyza sojae (Zehntner) in Kharif season

Abstract

Total thirteen black gram genotypes/cultivars (SKNU-13-02, SKNU-13-03, SKNU-13-05, SKNU-11-11, SKNU-12-04, SKNU-12-07, SKNU-12-08, SKNU-15-01, SKNU-15-02, SKNU-15-03, T9, GU 1 and Rajasthan local) were screened for their relative susceptibility against stem fly, Melanagromyza sojae during summer (2017) at Entomological farm, B. A. College of Agriculture, Anand Agricultural University, Anand.SKNU-15-01 (17.99%), SKNU-15-02 (18.81%) and SKNU-12-07 (19.48%) registered less infestation of stem fly and emerged as resistant genotypes. The genotypes/cultivars SKNU-13-05 (35.43%), SKNU-12-08 (35.83%) and Rajasthan local (38.26%) proved to be moderately resistant. GU 1 (51.43%), T9 (55.00%), SKNU-13-02 (55.05%), SKNU-12-04 (55.05%), SKNU-15-03 (58.03%) and SKNU-13-03 (59.25%) categorized as moderately susceptible. At the same time, SKNU-11-11 (60.36%) proved to be susceptible against stem fly. Maximum seed yield was harvested from the genotype SKNU-15-02 (833 kg/ha) during Kharif, 2017 followed by SKNU-12-07 (786 kg/ha).